Dietes bicolor

Dietes bicolor (variously known as African iris or fortnight lily) is a clump-forming rhizomatous perennial plant with long sword-like pale-green leaves, growing from multiple fans at the base of the clump. This species belongs to the Iridaceae (Iris) family. It can form large clumps if left undisturbed for years. This species is common in horticulture in its native South Africa, where it is often used in public gardens, beautification of commercial premises and along roadsides.

Dietes bicolor
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Iridaceae
Genus: Dietes
Species:
D. bicolor
Binomial name
Dietes bicolor
(Steud.) Sweet ex Klatt

The blooms are yellow with three dark purple spots, each surrounded by an orange outline, and are followed by a capsule that may bend the flower stalks to the ground. Ripe seeds (dark brown in colour) are dispersed when the capsule dries and splits.

The leaves of Dietes bicolor are narrower than those of Dietes grandiflora and Dietes iridioides, and tend to arch more.

Cultivation

Plants prefer dappled-shade to full sun where they will flower in profusion, though they will grow in shaded areas (with an accompanying loss of flower production). This species as well as Dietes grandiflora are very drought tolerant.

  • Flower of Dietes bicolor
  • Bud of Dietes bicolor
  • white variant

Notes
1. ^ The spots on the flowers sometimes appear so dark as to seem black.

References
  • Christman, Steve (2002-06-30). "Dietes iridioides". Retrieved 2008-12-03.
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